Rim-latch.



P. F. AUGENBRAUN.

RIM LATCH.

APPLIOATION FILED MAY 22, 190B.

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RIM LATCH.

APPLIOATION FILED MAY 22, 190B.

Patented Apr. 20, 1909.

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'tached view of the bolt and its carrying UNITED STATES PATENT OFFICE.

PETER F. AUGENBRAUN, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE & TOWNE MANUFACTURING COMPANY, OF STAMFORD, CONNECTICUT.

' RIM-LATCH.

No. 918,492. Specification of Letters Patent.

Patented April 20, 1909. Application filed May 22, 1908. Serial No. 434,404.

To all whom it may concern: mediately in rear of the head 1 of the bolt. Be it known that I, PETER F. AUGEN- i being in the plane of the longitudinal cen BRAUN, of Stamford, in the county of Fairter of the latter, while the rear free end of field and State of Connecticut, have ini the shank, is in a plane in front of the cenvented certain new and useful Improveter, and adjacent to the front or outer wall merits 1n Rim-Latches; and I do hereby deof the lock case. Formed integral with the clare the following to be a full, clear, and shank at the juncture of the two sections of exact description of the invention, such as the latter, is the shoulder 5, having a hole will enable others skilled in the art to which 6, through which the guide rod 7, secured to it appertains to make and use the same. the carrying frame 8 passes.

My invention relates to an improvement I The carrying frame 8 consists of a body 8 1n rim latches, the object being to provide a l and two ends 8", the guide rod 7 being selock having a bolt which when projected to cured at its ends to the ends 8 of the frame. a position past its normal locking position, I The rear or inner portion of the body 8 of will be automatically deadlocked against rethe carrying frame, is provided with a shoultraction by an instrument inserted between der 9, adapted to be engaged by the end of the face plateof the lock and strike plate. arm 10 on the hub 11 of the knob spindle 12,

A further object is to provide means for retracting, or moving the carrying frame whereby the latch bolt may be reversed so 8 rearwardly, and for moving the bolt back as to permit the latch to be used on doors to its single throw position, and mounted on swinging either inwardly or outwardly. the body of the carrying frame, with its rear l/Vith these objects in view my invention free end adjacent to said shoulder 9, is the consists in the parts and combinations of springpressed tumbler 13. The hub 11 of the parts as will be more fully described and knob spindle 12 is provided with aprojecting lug adapted to be engaged by projections from a hub (not shown) actuated by ordinary key mechanism. The tumbler 13 rests in a position to bear against the end of arm 10 on the hub, and operates to yieldingly hold said arm against the shoulder 9 when the bolt is in its single throw position, and against the rear end of lug 14 on the shank of the bolt, when the latter is in its double thrown and deadlocked position. The lug 14 on the rear end of the shank of the bolt is engaged by the arm 15 on the hub, for retracting the bolt from its single throw position. Mounted on the guide rod 7 is the spring 16, which tends to yieldingly hold the bolt in its projected positions. When the bolt is double thrown, it is deadlocked against manipulation by a thin instrument introduced between the face plate of the lock and the keeper, by the end of the arm 10 hearing against the rear face lug 14: on the end of the bolt shank, the arm 10 being limited in its movement by the engagement of the arm 15 on the hub of the knob spindle, with the post 1F fixed to the lock case.

In the operation of the look, if the bolt be double thrown and deadlocked, a rotation of the hub 11 in the proper direction carries the end of arm 10, away from the rear end of the bolt shank and into contact with the shoulder 9. During its movement, it pushes In the accompanying drawings, Figure 11s I a view in elevation showing the bolt in one j position. Fig. 2 is a similar view showing the bolt in its second or double thrown position. Figs. 3 and a are similar views of the rear of the lock the face plate being removed. Fig. 5 is a view in rear elevation showing the bolt retracted. Fig. 6 is a deframe; the parts being in their normal position when the bolt is projected either on a single or double throw. Fig. 7 is asimilar View of these parts showing their relative positions when the bolt is retracted. Fig. 8 is a detached View of the bolt partly in sec tion showing the manner of reversing the bolt head and Fig. 9 is a detached view of the bolt carrying frame.

1 represents the bolt head provided at its rear end with a socket for the reception of the cylindrical end 2 of the bolt shank 3, the said end 2 being secured in the socket by a pin 4 passing through a hole in the head, and resting in a peripheral groove in the cylindrical end 2, thus preventing a separation of the head and stem, but permitting the head to be turned so as to adapt itself to doors opening either inwardly or outwardly. The shank 3 is preferably shaped as shown in the drawings, that portion thereof. iml the tumbler 13, which yielding operates simply to hold the arm 10 against free or accidental movement, out of its path, and when it engages the shoulder 9 it moves the carrying frame 8 and its connected bolt back to its single throw position. By now continuing the turning movement of the knob 12 in the same direction, the arm 15 on the hub engages the front face of the lug let on the rear end of the shank of the bolt, and forces the bolt; to its fully retracted position, in which position it may be. retained by the slide 17 operated by thumb piece 18 engaging lug 19 on the bolt shank. By disconnecting the slide 17 from the bolt, the latter will be forced by the spring 16 out to its single throw position, and by rotating the knob 12 in the opposite direction, the arm 10 will engage the tumbler and lift same out of its path. Ordinarily the friction between the end of arm 10 and the tumbler 13 will be suflicient to move the carrying frame 8 and its connected bolt forwardly to the double thrown position of the latter, but if the arm 10 slips on the tumbler, it will engage the shoulder- 14; on the end of the bolt shank, and positively force the bolt and its connected carrying frame forwardly to the double thrown position of the bolt.

From the foregoing it will be seen that the bolt may be partly projected from the lock case, into what I have termed its normal locking position, or be projected still farther to what I have termed the double throw posit-ion, and when double thrown, will be deadlocked against any thin instrument applied against the bolt head between the face plate of the lock and the strike plate. When the bolt is. in its normal locking position the carrying frame rests adjacent tothe rear end of the lock case, and when double thrown, the frame is moved forwardly toward the front face of the lock. The independent movements of the bolt are guided by the bolt head in its slot in the face plate and the guide rod 7, and the movements of the carryframe are guided by the lugs 20 cast integral with the lock casing.

The hub of th lock is connected in the usual manner with the key lock on the outside of the door.

It is evident that many slight changes might be resorted to in the relative arrange ment of parts shown and described without departing from the spirit and scope of my invention hence I would have it understood that I do not wish to confine myself to the exact construction and arrangement of parts shown and described, but

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. In a lock, the combination with a carrying frame and a bolt, the shank of which has movable connection with said frame,

of bolt actuating mechanism provided with means for moving said frame and bolt inwardly, and also with means for moving the bolt inwardly independently of the frame.

2. In a lock, the combination with a bolt, and means for retracting the same, of means actuated by the retracting means for projecting the bolt beyond its normal locking position, and for restoring it to such normal position and means for deadlocking the bolt when the latter is projected beyond its normal position.

3. In a lock, the combination with a bolt, of a hub for moving the bolt to a projected position beyond its normal locking position, for deadlocking the bolt when so projected and for retracting the bolt,

4. The combination with a bolt and a connected frame, of bolt retracting means adapted to first engage the frame and move same rearwardly for partly retracting the bolt, and then engage the bolt proper for completing the retracting movement.

5. The combination with a movable frame and a bolt connected thereto, the said bolt being movable with the frame and movable on the frame, of means for moving the frame and bolt outwardly, and for moving the frame and bolt inwardly, and also for moving the bolt inwardly on the frame independently of the frame.

6. In a lock, the combination with a sliding frame and a bolt having a movable connection therewith, of a spindle carrying means for moving the frame and bolt out wardly, for moving the frame and bolt inwardly and for moving the bolt inwardly in-. dependently of the frame.

T. In a lock, the combination with a bolt comprising a shank and a head the latter being reversible on the shank, and a sliding frame having a sliding connection with the bolt shank, of a spring for normally holding the bolt in its locking positions andmeans for moving said bolt and frame outwardly and inwardly, and for moving the bolt inwardly from its normal locking position.

8. In a lock, the combination with a slidin frame and a bolt connected thereto so as to be moved therewith positively in one direction and yieldingly in the other direction, of means for moving the frame and bolt outwardly and inwardly, and for moving the bolt inwardly from 1ts normal locking position.

9. In a lock, the combination with a sliding frame having a guide rod, a bolt, the shank of which has a connection with said guide rod, and a spring tending to normally hold the bolt projected, of actuating mechanism for moving the sliding frame outwardly and inwardly and also having means for moving the bolt inwardly from its normal locking position.

ing frame having a guide rod, a bolt the inwardly from its normal locking position. shank of whlch has a connectlon w1th said In testnnony whereof, I have signed tlns rod and a spring tendlng to normally hold speclfioatlon 111 the presence of two subscribthe bolt projected in both positions of the 111g witnesses.

10. In a lock, the combination with a slidprovided with means for moving the bolt 10 sliding frame, of actuating mechanism for PETER F. AUGENBR-AUN. moving the frame and bolt outwardly and lVitnesses:

inwardly and for deadlocking the bolt when W. H. TAYLOR, moved outwardly with the frame, and also I F. M. FAUCETT. 

